*{padding: 0;margin: 0;font-family: "微软雅黑";}
a{text-decoration: none;}
ul li{list-style: none;}
.font1{color:#3e403f}
.font2{color:#808080}
.font3{color:#999999}
.font4{color:#cccccc}
.hide1{display: none;}
.popup{position: fixed;width: 100%;height: 100vh;overflow:hidden;z-index: 1000;background: rgba(0,0,0,0.5);left: 0;top:0;}
.first_popup, .two_popup ,.three_popup,.four_popup{z-index: 100}
.cursor{cursor: pointer;}
.fr{float: right;}
.fl{float: left;}
.over_point{overflow:hidden;word-break:keep-all;white-space:nowrap;text-overflow:ellipsis;}